An oral methylphenidate extended release tablet is described, which can be scored and still retain its extended release profile. The tablet contains a combination of an uncoated methylphenidate-ion exchange resin complex, a barrier coated methylphenidate-ion exchange resin complex-matrix, and an uncomplexed methylphenidate active component. Following administration of a single dose of the extended release methylphenidate chewable tablet, a therapeutically effective amount of methylphenidate is reached in less than about 20 minutes and the composition provides a twelve-hour extended release profile.

An aqueous liquid suspension containing a coated drug-ion exchange resin complex comprising a core composed of an amphetamine complexed with a pharmaceutically acceptable ion-exchange resin and an uncoated amphetamine-ion exchange resin complex is provided. The coated amphetamine-ion exchange resin complex is in admixture with a polymer to form a matrix. Methods of making the coated complex and the liquid suspension are described.

Disclosed are the cation polymers capable of removing their positive charges in oxidative conditions, preparation methods, and applications as gene delivery carriers. The oxidation-responsive unit is the p-(boronic acid or ester)benzylammonium, which upon oxidation eliminates p-hydroxymethlphenol and thus converts in a tertiary amine. Compared with the prior art, different from a common quaternary amination carrier, the synthesized charge reversal type gene delivery carrier for oxidative response of the present invention has a large quantity of positive charges and can well coat a DNA, but the positive charges can be removed under the condition of intracellular oxidation when the charge reversal type gene delivery carrier enters a cell, a charge reverse is triggered, the positive charges turn to negative charges, and the DNA is quickly released for transfection. The carrier is efficient, low in toxicity, and good in application prospect.

An aqueous liquid suspension containing a coated drug-ion exchange resin complex comprising a core composed of an amphetamine complexed with a pharmaceutically acceptable ion-exchange resin and an uncoated amphetamine-ion exchange resin complex is provided. The coated amphetamine-ion exchange resin complex is in admixture with a polymer to form a matrix. Methods of making the coated complex and the liquid suspension are described.

The present invention relates to the field of drug delivery, in particular the delivery of unmodified cargo molecules (such as doxorubicin and Taxol) using iron oxide nanoparticles as therapeutic delivery agents. Specifically described are methods to entrap cargo (i.e. known therapeutics (drugs) and other types of molecules) into the exterior coating of iron oxide nanoparticles, including iron oxide nanoparticles approved for use in humans. Additionally, methods describe the use of such drug-loaded nanoparticles as therapeutic delivery agents. Further, methods include quantifying and visualizing the amount of cargo molecule loading levels when preparing these therapeutic agents and then quantifying and visualizing the amount of delivery (i.e. unloading) of these cargo molecules from these nanoparticles using compact magnetic relaxometers, common NMR instruments and magnetic resonance imaging (MRI) instruments.

An oral methylphenidate extended release tablet is described, which can be scored and still retain its extended release profile. The tablet contains a combination of an uncoated methylphenidate-ion exchange resin complex, a barrier coated methylphenidate-ion exchange resin complex-matrix, and an uncomplexed methylphenidate active component. Following administration of a single dose of the extended release methylphenidate chewable tablet, a therapeutically effective amount of methylphenidate is reached in less than about 20 minutes and the composition provides a twelve-hour extended release profile.

The present disclosure provides oral suspension formulations of drotaverine or a salt thereof, methods of their preparation, and their use in treatment.

The present disclosure provides palatable orally disintegrating tablet formulations of drotaverine or a salt thereof, methods of their preparation, and their use in treatment.

An oral pharmaceutical composition is provided that can comprise a rho kinase inhibitor, for example, fasudil, a pharmaceutically acceptable salt thereof, a hydrate thereof, a prodrug thereof, a substituted derivative thereof, or a metabolite thereof, or any combination thereof, the rho kinase inhibitor having a bitter taste; and an ion exchange resin. The ion exchange resin can partially or fully mask the bitter taste of the rho kinase inhibitor, making the composition more palatable. The composition can comprise a solid dosage form, and/or a liquid dosage form. The solid dosage form can comprise a powder, granules, a tablet, or a capsule, or any combination thereof. The composition can be present, for example, in a unit dose, in an amount sufficient to treat a neurodegenerative disease. A method of treating the neurodegenerative disease with the oral pharmaceutical composition is provided. The method can ameliorate a symptom of a neurodegenerative disease.

Provided herein are protein-polymer conjugates, pharmaceutical compositions including protein-polymer conjugates, and methods of using the same, e.g., in therapeutic and industrial applications.